TE Connectivity MS5803-14BA01-50 14 Bar Digital Pressure Sensor, Absolute, 24-bit ADC, I2C/SPI, SMD Module

Name: TE Connectivity MS5803-14BA01-50 14 Bar Digital Pressure Sensor, Absolute, 24-bit ADC, I2C/SPI, SMD Module
Brand: TE Connectivity
SKU: SENS-1992
Price: 2099.00 INR
Availability: OutOfStock

₹2,099.00 (Inclusive of all taxes)

Out of Stock

The TE Connectivity MS5803-14BA01-50 is a high-precision digital absolute pressure sensor module featuring a 24-bit ADC and dual I2C/SPI interface. Designed for depth measurement and pressure monitoring, it is compatible with 3.3V microcontrollers like Arduino, Raspberry Pi, and STM32.

Features

High-resolution 24-bit ΔΣ ADC for precise pressure and temperature measurement.
Dual digital interface supports both I2C and SPI communication protocols.
Robust stainless steel cap with gel protection for water resistance and durability.
Ultra-low power consumption (12.5µA typical) ideal for battery-operated devices.
Factory calibrated with internal PROM storing compensation coefficients.

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Description

The MS5803-14BA01-50 is a MEMS-based piezoresistive pressure sensor integrated with a high-resolution 24-bit delta-sigma ADC. This integration provides direct digital output for pressure and temperature, eliminating the need for external signal conditioning. The sensor is factory calibrated, with coefficients stored in internal PROM for accurate real-time compensation of sensor offset, sensitivity, temperature, and linearity.

Encapsulated in a robust stainless steel cap with protective gel, the module is designed for harsh environments and offers overpressure protection up to 30 bar. Its wide operating temperature range from -40°C to +85°C and ultra-low power profile make it suitable for demanding applications in industrial instrumentation, submersible systems, and portable wearable devices.

Key Features

High-Precision MEMS Sensor: Delivers pressure resolution down to 0.2 mbar and temperature resolution of 0.002°C.
Dual Digital Interface: Offers flexible integration via selectable I2C or SPI serial communication.
Industrial Durability: Stainless steel housing with gel fill provides excellent water resistance and mechanical protection.
Optimized for Low Power: Typical current draw of 12.5µA enables long-term operation in battery-powered systems.
Factory Calibrated & Compensated: Internal PROM stores individual calibration coefficients for high accuracy out-of-the-box.
Wide Operating Range: Functions reliably from -40°C to +85°C, suitable for extreme environmental conditions.
High Overpressure Rating: Withstands pressures up to 30 bar, ensuring sensor integrity in dynamic systems.

Applications

Depth sensing and altimetry for diving computers and underwater ROVs.
Water level and tank pressure monitoring in industrial process control.
Barometric pressure measurement for weather stations and portable instrumentation.
Altitude tracking and environmental sensing in wearable fitness devices.
Leak detection and system pressure monitoring in HVAC and pneumatic controls.

Technical Specifications

Manufacturer Part Number	MS5803-14BA01-50
Sensor Type	Absolute Digital Pressure Sensor
Sensing Technology	MEMS Piezoresistive
Pressure Range	0 to 14 bar (absolute)
ADC Resolution	24-bit ΔΣ
Communication Interface	I2C and SPI
Supply Voltage	1.8V to 3.6V DC
Operating Temperature	-40°C to +85°C
Pressure Resolution	0.2 mbar (OSR 4096)
Temperature Resolution	0.002°C
Pressure Accuracy	±20 mbar (0°C to +40°C, 0 to 6 Bar)
Temperature Accuracy	±0.8°C
Overpressure Protection	30 Bar
Current Consumption (Typical)	12.5 µA
Peak Supply Current	1.4 mA
Output Type	Digital
Package Type	SMD Module

Frequently Asked Questions

What is the difference between absolute and gauge pressure measurement for this sensor?

The MS5803-14BA01-50 measures absolute pressure, meaning its readings are referenced to a perfect vacuum (0 bar). This is essential for applications like altitude or water depth measurement, where the reference is a fixed zero point. For gauge pressure (relative to atmospheric pressure), you would need to subtract the current local barometric pressure from the sensor's absolute reading.

How do I select between the I2C and SPI communication interfaces?

The interface is selected via the PS pin on the module. Pulling the PS pin low (to GND) selects the SPI interface, while leaving it high (or connecting to VDD) selects the I2C interface. Ensure your microcontroller code is configured for the corresponding protocol. The I2C address is factory-set and specified in the datasheet.

What is the required power supply and logic level for this sensor?

The sensor requires a supply voltage (VDD) between 1.8V and 3.6V DC. All communication lines (I2C's SDA/SCL or SPI's pins) must operate at the same logic level as VDD. It is directly compatible with 3.3V microcontroller systems like most ARM Cortex-M, ESP32, and Raspberry Pi. Use a level shifter if interfacing with a 5V system.

Is the sensor pre-calibrated, and how is temperature compensation handled?

Yes, each sensor is factory calibrated. Six calibration coefficients are stored in its internal PROM. Your firmware must read these coefficients and apply the provided compensation algorithm (detailed in the datasheet) to convert the raw ADC readings for pressure and temperature into highly accurate, temperature-compensated values.

What is the meaning of the 30 Bar overpressure specification?

The 30 Bar overpressure rating indicates the maximum pressure the sensor can be exposed to without causing permanent damage or a shift in its calibration. It is a safety margin significantly above its 14 Bar full-scale range, ensuring robustness against pressure spikes or surges in the system, which is critical for reliable operation in dynamic environments.